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《Geo-Information Science》 2006-02
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GRID Services for Large Scale Elevation Derivatives Computation

ZHANG Lili, ZHU Jiang, ZENG Zhiming, CAO Guofeng (Institute of Geographic Science, and Natural Resource Research, CAS, Beijing 100101, China)  
Analysis of automatically extracting terrain features based on Digital Elevation Model (DEM) such as slope gradient, slope aspect, curvature, flow paths and delineate drainage networks, is always a kind of fundamental work for many geoscientists. Shuttle Radar Topography Mission (SRTM), which produced a near global scope database of high accuracy elevation data, offers an opportunity to extend terrain analysis from local to global. However, it is a major disincentive for geoscientist to deal with massive DEM data even in a limited interesting research area. Grid Services for Elevation Derivatives (GSED) is proposed for spatial data dissemination and continental-scale topographic analysis computation based on DEM. The architecture of GSED is presented in the paper and unique problems that appear in the computing test are elaborated. Automation topographic factor extraction from SRTM is carried out through GSED. Traditional sequential algorithm has been reorganized to adapt to the distributed computing environment. Tibetan Plateau is selected as the focus area, and preliminary result is established for comparison with GTOP030. The result confirms that GSED is an effective method to solve the problem of high throughput computation with large scale geographic data.
【Fund】: 863计划课题“面向网络海量空间信息的大型GIS”(课题号:2003AA133020)
【CateGory Index】: P208
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1 LI Zhong-min1,2,YU Zhan-wu11.Department of Electric Information Engineering,Wuhan Polytechnic University,Wuhan 430023,China;2.State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China;Terrain Data Object Storage Mode and Its Declustering Method[J];Acta Geodaetica et Cartographica Sinica;2008-04
2 MA Weifeng1,2,WANG Xiaorui1,ZENG Zhongping3,XUE Chongsheng2(1 Graduate School,China University of Geosciences,Wuhan 430074,China2 Faculty of Earth Sciences,China University of Geosciences,Wuhan 430074,China3 College of Public Administration,Huazhong University of Science and Technology,Wuhan 430074,China);The DEM Analysis Tools Based on Computational Grids[J];Geo-Information Science;2008-03
3 Shen Chenglei,Ma Jinsong(Department of Geographic Information Science,Nanjing University,Nanjing,China,210093);The Influence of Different Size of Grid on Terrain Factors in DEM Analysis[J];Modern Surveying and Mapping;2007-06
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2 JIANG Yong-fa,LV Guo-nian(Jiangsu of Geographic Information Science,Nanjing Normal University,Nanjing 210097);Grid computing and infrastructure and key technology of grid GIS[J];Science of Surveying and Mapping;2005-04
3 WANG Guo-ping 1,2 , WU Xue-li 3 , CHEN Bin 1,2 , MA Zhi-gang 1,2 , DONG Shi-hai 1,2 (1. Dept. of Computer Science and Technology, Peking University, Beijing 100871,China; 2. The Key Laboratory of Intelligent Information Processing, I;The Implementation of High-bandwidth Network Based Real-time Interactive Browsing for 3D Massive Terrain Data[J];Acta Geodaetica Et Cartographic Sinica;2002-01
4 Li Qingquan, Li Deren (Wuhan Technical University of Surveying and Mapping, Wu han,430070);RESEARCH ON THE CONCEPTUAL FRAME OF THE INTEGRATION OF 3D SPATIAL DATA MODEL[J];ACTA GEODAETICA ET CARTOGRAPHIC SINICA;1998-04
5 WAN Hong tao 1,2 , ZHOU Cheng hu 2, WAN Qing 2 (1 Institute of Remote Sensing Applications, CAS, Beijing\ 100101, China; 2 Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China);The Computational Domain Discretion for Hydrological Model[J];Progress In Geography;2001-04
6 TANG Guoan 1,2 , ZHAO Mudan 1,3 , LI Tianwen 1 , LIU Yongmei 1,3 , XIE Yuanli 1 (1. Department of Urban and Resource Science, Northwest University, Xi'an710069, China; 2. The Key Open Laboratory of Continental Dynamics, Ministry of Education,Northwest University, Xi'an710069, China; 3. Institute of Soil and Water Conservation, CAS and Ministry of Water Resources, Yangling712100, China);Modeling Slope Uncertainty Derived from DEMs in Loess Plateau[J];Acta Geographica Sinica;2003-06
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8 SHEN Zhanfeng LUO Jiancheng CAI Shaohua ZHENG Jiang CHEN Qiuxiao SUN Qinghui (National Laboratory of Resources and Environmental Information System, IGSNRR, CAS, Beijing 100101);Architecture of Grid-GIS and Its Key Techniques[J];Geo-information Science;2003-04
9 YE Tianzhu(Chinese Geological Survey, Beijing 100083, China);National Geological Spatial Information Grid and its Application[J];Geo-Information Science;2006-04
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